Remove time part on DateRange ctor

Author: geoperez

src/Unosquare.DateTimeExt/DateRange.cs

@@ -23,13 +23,13 @@ public DateRange(IReadOnlyDateRange range)
     }
 
     public DateRange(DateTime startDate, DateTime? endDate = null)
-    : base(startDate, endDate ?? startDate)
+    : base(startDate.Date, endDate?.Date ?? startDate.Date)
     {
         if (EndDate < StartDate)
             throw new ArgumentOutOfRangeException(nameof(endDate), "End Date should be after Start Date");
     }
 
-    public DateTime MidnightEndDate => EndDate.Date.AddDays(1).AddSeconds(-1);
+    public DateTime MidnightEndDate => EndDate.AddDays(1).AddSeconds(-1);
 
     public DateTime FirstBusinessDay => StartDate.GetFirstBusinessDayOfMonth();
 
@@ -85,7 +85,7 @@ public int CompareTo(DateRange? other)
 
     public static bool TryParse(string? value, out DateRange result)
     {
-        result = default!;
+        result = null!;
 
         if (string.IsNullOrWhiteSpace(value))
             return false;

src/Unosquare.DateTimeExt/YearMonth.cs

@@ -46,7 +46,7 @@ public YearMonth(IYearWeek yearWeek)
 
     public static bool TryParse(string? value, out YearMonth range)
     {
-        range = default!;
+        range = null!;
 
         if (value == null)
             return false;

src/Unosquare.DateTimeExt/YearQuarter.cs

@@ -74,7 +74,7 @@ public int CompareTo(YearQuarter? other)
 
     public static bool TryParse(string? value, out YearQuarter result)
     {
-        result = default!;
+        result = null!;
 
         if (string.IsNullOrWhiteSpace(value))
             return false;

src/Unosquare.DateTimeExt/YearWeek.cs

@@ -56,7 +56,7 @@ public int CompareTo(YearWeek? other)
 
     public static bool TryParse(string? value, out YearWeek result)
     {
-        result = default!;
+        result = null!;
 
         if (string.IsNullOrWhiteSpace(value))
             return false;

src/Unosquare.DateTimeExt/YearWeekIso.cs

@@ -48,7 +48,7 @@ public int CompareTo(YearWeekIso? other)
 
     public static bool TryParse(string? value, out YearWeekIso result)
     {
-        result = default!;
+        result = null!;
 
         if (string.IsNullOrWhiteSpace(value))
             return false;

test/Unosquare.DateTimeExt.Test/Unosquare.DateTimeExt.Test/YearWeek-Tests.cs

@@ -9,7 +9,7 @@ public void WithWeek_Deconstruct()
         yearMonth.Deconstruct(out DateTime startDate, out var endDate);
 
         Assert.Equal(new(2022, 1, 2), startDate);
-        Assert.Equal(new DateTime(2022, 1, 8).ToMidnight(), endDate);
+        Assert.Equal(new(2022, 1, 8), endDate);
     }
 
     [Fact]
@@ -27,7 +27,7 @@ public void WithWeek_DateRange()
         var yearMonth = new YearWeek(1, 2022);
 
         Assert.Equal(new(2022, 1, 2), yearMonth.StartDate);
-        Assert.Equal(new DateTime(2022, 1, 8).ToMidnight(), yearMonth.EndDate);
+        Assert.Equal(new(2022, 1, 8), yearMonth.EndDate);
     }
 
     [Fact]

test/Unosquare.DateTimeExt.Test/Unosquare.DateTimeExt.Test/YearWeekIsoTests.cs

@@ -9,7 +9,7 @@ public void WithWeek_Deconstruct()
         yearMonth.Deconstruct(out DateTime startDate, out var endDate);
 
         Assert.Equal(new(2022, 1, 3), startDate);
-        Assert.Equal(new DateTime(2022, 1, 9).ToMidnight(), endDate);
+        Assert.Equal(new(2022, 1, 9), endDate);
     }
 
     [Fact]
@@ -27,7 +27,7 @@ public void WithWeek_DateRange()
         var yearMonth = new YearWeekIso(1, 2022);
 
         Assert.Equal(new(2022, 1, 3), yearMonth.StartDate);
-        Assert.Equal(new DateTime(2022, 1, 9).ToMidnight(), yearMonth.EndDate);
+        Assert.Equal(new(2022, 1, 9), yearMonth.EndDate);
     }
 
     [Fact]